Finding the Fourth Proportional to 843.75, 1,265.69 and 266.63
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Solution
The fourth proportional to 843.75, 1,265.69 and 266.63 is: 399.96
Step by Step Solution
- Step 1: Write the proportion equation
843.75 : 1,265.69 = 266.63 : x - Step 2: Convert to fraction form
843.75/1,265.69 = 266.63/x - Step 3: Cross multiply
843.75x = 1,265.69 × 266.63 - Step 4: Simplify right side
843.75x = 337,465.26 - Step 5: Solve for x
x = 337,465.26/843.75 - Step 6: Final answer
x = 399.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.